92HD005 Datasheet, PDF (177/205 Pages) Integrated Device Technology – 4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE

92HD005/92HD005D
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
PC AUDIO
3.4.29.6. ExtVolume KnobCtl
Table 432. ExtVolume KnobCtl Command Verb Format
Verb ID
Payload
Response
Get
F0F
00
See bitfield table.
Set1
70F
See bits [7:0] of bitfield table.
0000_0000h
Bit
[31:8]
[7]
[6:0]
Table 433. ExtVolume KnobCtl Command Response Format
Bitfield Name RW Reset
Description
Rsvd
R
0x0
Reserved
Direct
Direct = 1 causes the volume control to directly
RW
0x0
control the hardware volume of the slave amps.
Direct = 0 causes unsolicited responses to be
generated.
Volume
RW
0x7F Volume, specified in steps of amplifier gain
3.4.29.7. ExtVolume KnobVSR
Table 434. ExtVolume KnobVSR Command Verb Format
Verb ID
Payload
Response
Get
FE0
00
See bitfield table.
Set1
7E0
See bits [7:0] of bitfield table.
0000_0000h
Bit
[31:4]
[3]
[2:0]
Table 435. ExtVolume KnobVSR Command Response Format
Bitfield Name
RW
Reset
Description
Rsvd
R
0x0
Reserved
Continuous
Allow continuous
RW
0x1
incrementing/decrementing of the volume
knob value.
Rate
Volume knob update rate, for continuous
RW
0x0
mode and de-bouncing (2.5 Hz to 20 Hz, in
increments of 2.5 Hz)
IDT™
177
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
92HD005/92HD005D
V 1.0 12/06